Universal joint



Oct. 6, 1931. c. E. FURGASON 1,826,611

UNIVERSAL JOINT Filed May 17, 1926 I NV EN TOR. [0900: 0mm

A TTORNEYJ vention;

l a tented Oct. 6, 1.9 31

f "TUNIT'YETD: STATES CLAUDE YE. rUneAsoN, or LANsING, MICHIGAN,ASSIGNOR TO nno iaoronoan M PATENT i PA, or LANSING, MIGHIGAN,-ACORPORATION or MICHIGAN UNIVERSAL JoINr Application filed May 17, 1926.Serial No. 109,662.

The invention relatesto universal joints and more particularly to aself-lubricating joint ofthis character."

V Self-lubricating jointsas heretofore manu- 5: factured have proven,;inmost instances, to be more or less unsatisfactory, particularlybecause of the complexity thereof. It is therefore an object of thisinvention to pro- 7 vide a universal joint of the above mentioned 10character which is distinguished by its sim- 1 plicity and whichconsequently may be economically manufactured, assembled and insta e -f"Another object ofthis invention is to provide means foradjusting-certain elements 1 of the'j oint'as the p'ar ts'becomewornthrough 'service to thus compensate for this wear and prevent leakageofthe lubricant.

' Variousother objects, advantages and mm details of construction willbe made more apparent as this description proceeds especially whenconsidered with the accompanying drawings wherein i Figure 1 is the sideelevation of a universal joint constructed in accordance with this in-Figure 2 is a longitudinal sectional view therethrough and Figure 3 is atransverse sectional view taken substantially on a line 33 in Figure 2.Referring now particularly to the drawings wherein like referencecharacters indicate like parts, it will be noted that there is yoke-likemembers 11 are connected. The

, ends of the shafts 12 to be coupled are secured within the sleeve-likeportions 13 of the yokes tending openings or passages 16 communicat- 5.ing with the periphery of the body 10. These passages 16 constitutebearings and may if desired be lined with bushings 17 as illus tratedinthe drawings. Adjacent the outer f end of each bushing 17 the body isformed with a recessed portion to accommodate a packing lS.

plane indicated by provided a body portion 10 to which two Theyokes 11are pivotally connected to the body 10 by means of bearing pins 19 whichare journaled in the bearing portions of the body 10, the journaledportion of each pin.

19 extending through the associated bushing 17 and into the lubricantchamber 15. Each bearing pin 19 is arranged for detachable andadjustableconnection with the yoke 11 and in the present embodiment ofthis invenw tion this is accomplished by forming each bearing pin with athreaded head portion 20 wh ch engages in a threaded aperture in thelongitudinally split end of the yoke arm.

The two" spaced ends of the yoke arm are apertured for engagement byclamping bolt 21 whereby the bearing pin may be rigidly secured thereto.It will be noted that the head 20 of each bearing pin engages thepacking 18 and at the outer end thereof is pro-- vlded with a slot 22whereby this bearing pin .may be screwed inwardly to compress thepacking-18 to provide. a leak-proof joint between the parts.

Lubricant may be supplied to the lubricant chamber 15 through an openingclosed by a plug 23 and with a supply of'lubricant inte-' riorly of thebodylOthe bearing surfaces of the bushing 17 and bearing pins 19 will belubricated by centrifugal action upon the to tation of the joint. Thelubricant will flow outwardlyialong the surface of the bearing "pins 19to the packing 18 but a small quantity of this lubricant will escapepast the packing ring 18 to lubricate that portion of theiyokes I 11 andbody 10 which engage one another. In'tbis connectionit will be notedthat the thrust upon the joint will be taken by the ends of the yokebearing upon the adjacent portion a of the body so that these lthrustsare not absorbed. by ithe. packing or washers Obviously in case ofexcess leakage of the lubricant past the packing-ring 18 the bolt 21 maybe loosened and the bearing pins 19 screwed in further to cause theheads 20 thereof to further compress the packing ring 18 whereuponv thebolts 21 will again be tightened'to lock the bearing pins 19 in theiradjusted position with respect to the yokes 11. j The herein describedconstruction not only affords an entirely satisfactoryself-lubricatmaybe adjustedito.compensatefor Wear oc -Q casionedinservice.

' ding universal jointIbut'atford s meansof manufacturing the jointeconomically. The

body 10 and the yokes '11 maybe cast and suitable ournal bearingsprovided by the insertion ofthe bushings 11 which may be of steelorothersi nilarmetah Only the engag "ing'services of the bushings 17 andthe bearing pi-ns'l9 need be inachined The adjustability ofthebearinglpins' lengthenthe life or thejoint as in this manner thepjacking rings meansror lubricating said abuttlng surfaces,

While one illustrative. embodimentof the intention has been describedand'illuistrated 'hereln somewhatv in detail it will be" readilyapparent to those skilled ini'this-artthat vavrious changes. may beresorted to without 'de-. j a parting from the spirit: and scope of thein 1.1 In a uniyersal oint, alb d-Y, afly'oke said "bodyfandlyolre'having abutting surfaces for taking up the thrust upon the joint, meansI I ,for lubricatingsaid abutting isnliri'aces; bearpins adjustablycarried by said yoke'jour vention-andto this endreservation is made toIm-akegsuch changes asimay come ithin the Lpurvretv of the aceompanylngclanns, v v V/fhat1 cla1ri1 as my invention 1s: 5

inner of saidheads and theiouter ends of saidjbushings and th'e'saidshoulders.

5. "In-a universal 0int,1a body, a yoke, said body and the yokehavingslidably abutting surfaces, means [for lubricating saidjsurfaces,

and means carried bysaid-ryoke for regulatid; may "and yoke havingabutting sur-V l naled in said bodygand means operable u'p'en adjustmentof theflsaidbearing pins to reg- .ulat-e the flow of lubricant tothesaid abutting surfaces.v i

1 '2; In a universal joint, a body forme'd'with f ab lubricant chamber 1and radially extending body, bearing pins having. heads ,threadedlyconnected to said yolres andshanks ournaled openings constituting"bearings, bushings in sald Openings, a yokeengageable w th said in's'aid'bearings andpackingjat the :f outer ting surfaces.

surfaces.

' '6; In a universal joint, abody, afyo ke, said body and "yoke having.abutting. iisurfaces,

and 'a m'ember carried by "the' yoke adjustable to regulate the flow oflubricant t0 saidabutmeansjtor lubricating said abutting surfaces,

in the passage qo'f lubrieant to saidiabutting and a member carried saidyoke-for con I fleeting, said yo ke to said member "being adjust his toregulate the flow ,oilubr cant to. the sa d surf-aces..-

ces,;packiag carriedQby :thesaid a body,

ineans -I"er --supplying. lubricant; to: the said packing, andwa member.adjustably carr ed by'the said yoke aria engageableiwith the saidpacking for regulating the supply oflubri face and aimemberforConnecting saidfyoke ends of said bushing adapted; to berfc om I Ipressed between the headset said bearing 4 e "pins and the ends offsaidbushings for limitto said l bedy, said member being, adjustable toregulate the, passageof lubricant'to 1 said bearlngsurface, l g i 1 1,

ln testimony whereof I afiix my, signature.

'y ingthelfiow oflubricant frQm-Saidzchamber A g body.

3; In a g a lubricant chamber and radially extending to the engagingsurfaces" of; said yoke and universal a bodj With 1 "'lournaledin saidbushings-and packing be- I'Wieen" the Outer ends of;saidbushings and ii5: it the inner ends of the heads of said bearing 1- 1 T In a,

s-yokes and redl Cd sl h I imiyersaljjoinhia body formed with v.alubricantchamber and radially extending iopenings constitutingbearingsradiallylin- \vvf'airfdly eatending,annular,isheul'dersliormed'j"in.saidopenings;adjacent ;the outeriendsf V 1 thereof bushings in said oeniga st arranged j l *withtheirflouter ends' adjacent' the said shoul-V I f large heads threadedlfj conneeted to said v anlgportions jonrnaledE k ng. etwss l fih c-ant frpm the-said packing tp 'theabutting

